Year	% (modeled ILO estimate)
1991	42.338
1992	42.981
1993	42.66
1994	43.537
1995	42.63
1996	43.024
1997	42.735
1998	42.306
1999	43.742
2000	42.072
2001	40.769
2002	38.867
2003	39.315
2004	40.421
2005	40.935
2006	42.043
2007	43.712
2008	43.499
2009	43.546
2010	45.045
2011	43.008
2012	42.38
2013	42.07
2014	41.816
2015	40.849
2016	40.825
2017	39.659
2018	39.031
2019	38.887
2020	38.303
2021	39.792
2022	40.967
2023	41.26